UB 5+.50 KK, A on Flop...Do I check behind?

[tarantulabob]

Need a little help here. Was my PFR the right size? Got a little confused when the shortie just called instead of pushing. Then 2 checks on the flop...wasn't sure what to do here. Figured if shortie had an A he was pushing...wasn't sure about the other. No real reads on either. I haven't been involved in many hands (3 at the most) and haven't been paying too much attention either (busy looking for a MB upgrade for my son so he can stop using my computer to play WoW).

Thanks in advance....Tbob
P.s. Then converter screwed up a little, so i fixed it by hand in case it looks funny. The PF betting is correct.

Ultimate Bet No-Limit Hold'em Tourney, Big Blind is t40 (10 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG+1 (t1670)
UTG+2 (t1240)
Hero (t1510)
MP2 (t1440)
MP3 (t1620)
CO (t1450)
Button (t1450)
SB (t1385)
BB (t2560)
UTG (t675)

Preflop: Hero is MP1 with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
UTG Bets t80, UTG+2 calls t80, <font color="#CC3333">Hero raises to t250</font>, <font color="#666666">6 folds</font>, UTG calls t170, UTG+2 calls t170.

Flop: (t810) 7[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
UTG checks, UTG+2 checks, <font color="#CC3333">Hero?</font>